Hridya Valsaraju ecbdae8679 Add an IOCTL to check ION ABI version
Userspace needs a way to detect ION ABI version at runtime to determine
heap IDs. CURRENT_ION_ABI_VERSION is set to 2 considering legacy and
upstream versions as 0 and 1.

Bug: 140916230
Test: make

Signed-off-by: Hridya Valsaraju <hridya@google.com>

Change-Id: Ie9d9e23c2d8323620832906d33745d599cbce6be
2019-10-04 19:35:54 +00:00
2019-10-02 19:10:07 +02:00
2019-10-02 19:10:07 +02:00
2019-10-02 19:10:07 +02:00
2019-10-02 19:10:07 +02:00
2019-09-13 17:21:38 +03:00
2019-10-02 19:10:07 +02:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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